巴音温都尔沙漠为阿拉善高原东部低山丘陵盆地型沙漠，由独立、间断分布的博客台沙漠、海里沙漠和白音查干沙漠组成，本文利用巴音温都尔沙漠区4个气象站实测的2016—2020年风速、风向数据，分析了该区风况和输沙势变化特征。结果表明：巴音温都尔沙漠2016—2020年年际间风速变化不大，年平均风速为6.12 m·s^-1，年平均起沙风风速为9.33 m·s^-1。风速月际间变化较明显，呈显著的春季、夏季两极分化趋势，春季起风的频率最高（最高达67.77%）；主导风为WSW偏W风向，4个气象站的年输沙势均值为359.99 VU，年合成输沙势均值为 204.46 VU，年输沙势的方向变率指数均值为0.55，整体属于中风能环境，中等风向变率，钝双峰或锐双峰风况。输沙势季节差异大，冬季输沙势最大（453.72 VU），夏季输沙势最小（287.74 VU）。根据风况和输沙势分析，建议对该区进行长期的风沙流观测，从风能环境和风沙活动规律方面为巴音温都尔沙漠区风沙灾害防治提供科学依据。

Bayinwenduer Desert is a low mountain hilly basin desert in the east of Alxa Plateau， consisting of independent and intermittent distribution of Boketai Desert， Haili Desert and Baiyinchagan Desert. In this paper， the data of wind speed and wind direction from 2016 to 2020 were used to analyze the change characteristics of sand-moving wind and the drift potential in this area. The results show that there was little difference in the annual wind speed between 2016 and 2020， the annual average wind speed was 6.12 m·s^-1， and the annual average sand-moving wind speed was 9.33 m·s^-1. The wind speed changed significantly between months， which showed a significant trend of double differentiation in spring and summer， and the frequency of wind in spring was the highest （up to 67.77%）. The dominant wind in this area was WSW direction， and the annual average of drift potential was 359.99 VU， and the average resultant sand transporting potential was 204.46 VU， and the average directional variation index was 0.55. In the whole study area， there was a middle wind energy environment， a moderate wind direction variation， a blunt double peak or sharp double peak wind condition. There was a big difference in seasonal drift potential， with the largest in winter （453.72 VU）， and the smallest in summer （287.74 VU）. According to the analysis of wind conditions and drift potential， it is suggested to carry out long-term observation of sand flow in this area， and provide scientific basis for the prevention and control of sandstorm disasters in Bayinwenduer Desert from the wind energy environment and the sand activities.